Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.
Average class size
24.75
2025/26
Mainstream classes
16
2025/26
Largest class group
27
2025/26
Classes with 30+ pupils
0
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
442
16
27.62
30
1
2007/08
434
16
27.12
30
1
2008/09
431
16
26.94
29
0
2009/10
447
16
27.94
31
4
2010/11
458
16
28.62
31
5
2011/12
455
16
28.44
32
6
2012/13
452
16
28.25
32
7
2013/14
435
16
27.19
30
2
2014/15
422
16
26.38
28
0
2015/16
430
16
26.88
30
1
2016/17
440
16
27.50
30
1
2017/18
452
16
28.25
31
5
2019/20
431
16
26.94
30
5
2020/21
419
16
26.19
30
1
2021/22
410
16
25.62
28
0
2022/23
414
16
25.88
29
0
2023/24
411
16
25.69
29
0
2024/25
403
16
25.19
29
0
2025/26
396
16
24.75
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 217 in 1977/78 → 351, +134 pupils.
Biggest loss in a single year: 1997/98: 501 in 1996/97 → 467, -34 pupils.
Largest single-class increase: 6th Class in 2023/24 (99 → 110, +11).
Largest single-class decrease: 6th Class in 2021/22 (115 → 91, -24).
Largest cohort-step gain: 3rd → 4th in 2025/26 (99 → 102, +3).
Largest cohort-step loss: 4th → 5th in 2023/24 (107 → 103, -4).
Overall: 104 (1976/77) → 396 (2025/26), 292.
Summary statistics (class-level data)
Min / max / mean enrolment per class across the available final by-standard years.
Class
Min
Max
Mean
Years
Junior Infants
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
0
0
0.0
1
3rd Class
96
111
102.7
6
4th Class
97
109
103.2
6
5th Class
92
109
100.0
6
6th Class
91
115
103.0
6
Total
104
517
434.9
40
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
Enrolment by gender over time
Enrolment by class over time
Cohort progression
Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).